Beta
PARP inhibitors
medication Under reviewPARP inhibitors are a class of targeted anticancer drugs that block poly(ADP-ribose) polymerase enzymes involved in DNA repair. In healthy cells, PARP helps detect and repair single-strand DNA damage; inhibiting PARP can increase genomic instability and impair cell survival under DNA-damaging stress. In clinical oncology, this mechanism is leveraged to preferentially damage tumor cells with defective homologous recombination repair, such as BRCA-mutated cancers. For healthy people, PARP inhibitors are not supplements and are not used for general wellness, performance, or longevity. Human evidence in healthy subjects is limited and mainly concerns short-term biological effects and safety, not health benefits. Available data show that PARP inhibition can increase markers of DNA damage and genomic instability in normal human cells, which supports caution rather than routine use outside approved medical indications.
Research summary
The scientific literature in healthy human subjects does not support PARP inhibitors as a wellness intervention. The main human-relevant evidence comes from mechanistic and early-phase safety work showing that PARP inhibition can produce genomic instability in normal human cells, with increased sister chromatid exchange and chromatid-type aberrations after exposure. Most clinical research on PARP inhibitors involves cancer patients rather than healthy volunteers, so there is no credible evidence base for benefits such as longevity, cognitive enhancement, or general disease prevention in healthy adults. Overall, the evidence suggests these are prescription oncology drugs with important biological effects and potential toxicity, not dietary supplements.
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